Continuity mistake: During the scene in Mrs. Garrett's bedroom the flowers in the vase keep changing position.
Visible crew/equipment: Tootie and Arnold walk into the room where Blair and Jo are. The shadow of the boom mic is visible on the wall.
Cousin Geri - S2-E5
Continuity mistake: Blair is talking on the phone to her mom. Tootie is listening pretending to wash the wall - her hand is raised. Blair says "Will you knock it off." The shot changes and Tootie's hand is now by her side.
Answer: The guards had no idea if Tootie was a deranged fan or if she had a bomb in her package. This wasn't very long after John Lennon was shot, after all.
Brian Katcher